DEVICE FOR DIFFERENTIATED APPLICATION OF LIQUID AGROCHEMICALS Russian patent published in 2011 - IPC A01C23/00 

FIELD: agriculture.

SUBSTANCE: invention relates to the field of agriculture mechanisation. Device comprises a hydraulic reservoir for agrochemicals with number of working compartments equal to number of applied components, a wide-cut rod for distribution of fertilisers, working elements fixed on rod, in the form of injection nozzles, a hydraulic system controlled from the common control instrument, making it possible to automatically provide for specified process modes of fertilisers application when changing from one elementary section of treated field to another, individual hoppers of components on each nozzle, arranged in the form of piston pairs, metering volumes of which are equipped with sensors of position and dose controllers. Piston pairs of individual component hoppers are equipped with linear electric servodrives with inbuilt position sensors, control inputs of which are connected to outputs of dose controllers, inputs of which are connected to sensors of servodrive position and to common control device. Measuring volumes of individual hoppers are connected to supply pipelines via the first check valves providing for passage of working solutions from hydraulic reservoir, and with suction inlets of injection nozzles via the second check valves providing for outlet of working solutions into nozzles.

EFFECT: invention solves objective of design simplification and increases reliability of operation for any chemical composition and number of simultaneously applied chemicals.

3 dwg